Is Patient State Index of EEG Better Than Bispectral Index of EEG in Assessing Different Levels of Sedation as Judged by Ramsey Sedation Score in ICU Patients?Shah N., Quijano A. Anesthesiology 2004; 101: A293.

Assessment of Patient State Index (PSI) and Bispectral Index (BIS) Values during the Recovery Period after Outpatient Surgery.Tang J., White P. F., Wender R. H. Proceeding of the 2004 Annual Meeting of the International Anesthesia Research Society: S-125.

Comparison of PSA and BIS Monitoring during General Anesthesia with Propofol and Desflurane.Tang J., Chen X., White P.F., Wender R., Naruse R. Proceeding of the 2002 Annual Meeting of the International Anesthesia Research Society: S-21.